在水平投影面上，推力杆与车架纵向中心线之间具有夹角。
On the horizontal projection plane, an included Angle is formed between the thrusting bars and the longitudinal center line of the axle.
水平地基的变形大致对称于线路中心线，斜坡地基的变形集中在下坡一侧边坡下；
The deformation of level foundation is generally symmetric of road central line and the deformation of slope foundation is mainly concentrated on the border side of the declivity.
本文分析了车床主轴热位移及其影响加工精度的机理，并提出了主轴中心线与主轴箱装配基面在同一垂直平面内和同一水平面内的最佳位置。
This paper discusses the thermal travel motion of a main shaft in machine tools, and the mechanism of its significant influence on manufacturing accuracy.
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